Apparatus for dyeing loose material.



W. BERGER. APPARATUS FOR DYEING LOOSE MATERIAL. APPLICATION FILED JULY 5, 1910.

1 u u n m. n n u n m "1 1 m fl J 4 UNIT STATES PATENT OFFICE.

WALDEMAR BERGER, OF HbCHST-ON-THE-MAIN, GERMANY, ASSIGNOR TO EARBWERKE VORM. MEISTER, LUCIUS & BRI l'NING, F HfiGHST-ON-THE-MAIN, GERMANY, COR- PORATION OF GERMANY.

APPARATUS EOE DYEING LOOSE MATERIAL.

Specification of Letters Patent.

Patented Feb. '7, 1911.

Application filed July 1910. SerialNo. 570,475.

T 0 all whom it may concern:

Be it known that I, WALDEMAR BERGER, engineer, a citizen of the Empire of Germany, residing at Hochst-on-the-Main, Germany, have invented certain new and useful Improvements in Apparatus for Dyeing Loose Material, of which the following is a specification.

It has been hitherto commercially impossible to dye loose material in the vat, because the penetration of the dye has been, for several reasons, imperfect. My present invention not only remedies this deficiency, but it also renders it possible to dye in the continuous vat, whereby the output is considerably increased. The uneven dyeing of the loose material in the vat is not only due to the liquor not being squeezed out uniformly when the material is taken out of the vat, but it is chiefly caused by the loose material containing air which prevents an even dyeing. Therefore it is important that the loose material should be well pressed within the liquor. However in this case the material does not sufliciently absorb the dyeing liquor. This disadvantage is remedied by my present invention according to which the material passes a willowing-apparatus placed within the bath, by which it is willowed (torn up) and thereby well exposed to the action of the dyeing liquor.

Figure 1 is a longitudinal vertical section of the apparatus, and Fig.2 is a transverse vertical section of the same.

The apparatus shown on the accompanying drawing is particularly suitable. The loose material is put in the funnel A, taken up by the feeding-rollers B and, after being well divided by the willow C,- carried between the endless perforated bands D and D By means of these bands the materialis passed between the two pairs of pressurerollers E. and E placed within the liquor, and then conveyed to the willow-roller F, whence the thus well-divided material is passed through the liquor by means of the said bands or some other transporting device. The material is passed through the bath more quickly or more slowly, or by a shorter or a longer way, according to the desired intensity of the dyeing. Finally the material is freed from the adhering dyeing liquor by means of the pair of pressure rollers G, placed close to the surface of the bath, taken off by another willowing device H, and again willowed for the purpose of oxidizing and drying it quickly and uniformly.

Having now particularly described my invention, what I claim is:

1. An apparatus for dyeing loose mate rials, comprising a vat having within the liquor region a quickly-revolving toothed roller, and means for carrying'the material to said roller and thereby causing it to be willowed beneath the surface of the dye bath.

2. An apparatus for dyeing loose'materials comprising a vat, and means within said vat for successively compressing and willowing or loosening the fibers of the material fed into the dye-bath. v

3. An apparatus for dyeing loose materials, comprising a vat, means'for conducting the material through the vat, and pressure rollers and a willow-roller arranged to successively act on the material within the dye bath.

In testimony whereof, I aflix my signature in presence'of two witnesses.

. WALDEMAR BERGER.

Witnesses:

JEAN GRUND, CARL GRUND. 

